<?php

namespace backend\models;  
  
use Yii;  
use yii\base\NotSupportedException;  
use yii\behaviors\TimestampBehavior;  
use yii\db\ActiveRecord;  
use yii\web\IdentityInterface;  
  
/** 
 * This is the model class for table "{{%admin}}". 
 * 
 * @property integer $id 
 * @property string $username 
 * @property string $auth_key 
 * @property string $password_hash 
 * @property string $password_reset_token 
 * @property string $email 
 * @property integer $role 
 * @property integer $status 
 * @property integer $created_at 
 * @property integer $updated_at 
 */  
class Admin extends ActiveRecord implements IdentityInterface  
{  
    const STATUS_DELETED = 0;  
    const STATUS_ACTIVE = 10;  
    const ROLE_USER = 10;  
    const AUTH_KEY = '123456';  
  
    /** 
     * @inheritdoc 
     */  
    public static function tableName()  
    {  
        return '{{%admin}}';  
    }  
  
    /** 
     * @inheritdoc 
     */  
    public function behaviors()  
    {  
        return [  
            TimestampBehavior::className(),  
        ];  
    }  
  
    /** 
     * @inheritdoc 
     */  
    public function rules()  
    {  
        return [  
            [['username', 'email',], 'required'],  
            [['username', 'email'], 'string', 'max' => 255],  
            [['username'], 'unique'],  
            [['username'], 'match', 'pattern'=>'/^[a-z]\w*$/i'],  
            [['email'], 'unique'],  
            [['email'], 'email'],  
            ['status', 'default', 'value' => self::STATUS_ACTIVE],  
            ['status', 'in', 'range' => [self::STATUS_ACTIVE, self::STATUS_DELETED]],  
            ['role', 'default', 'value' => self::ROLE_USER],  
            ['auth_key', 'default', 'value' => self::AUTH_KEY],  
            ['role', 'in', 'range' => [self::ROLE_USER]],  
        ];  
    }  
  
    /** 
     * @inheritdoc 
     */  
    public static function findIdentity($id)  
    {  
        return static::findOne(['id' => $id, 'status' => self::STATUS_ACTIVE]);  
    } 
    

  
    /** 
     * @inheritdoc 
     */  
    public static function findIdentityByAccessToken($token, $type = null)  
    {  
        return static::findOne(['access_token' => $token]);  
        //throw new NotSupportedException('"findIdentityByAccessToken" is not implemented.');  
    } 
    
    /**
     * Finds user by username
     *
     * @param string $username
     * @return static|null
     */
    public static function findByUsername($username)
    {
        return static::findOne(['username' => $username, 'status' => self::STATUS_ACTIVE]);
    }

    /**
     * Finds user by password reset token
     *
     * @param string $token password reset token
     * @return static|null
     */
    public static function findByPasswordResetToken($token)
    {
        if (!static::isPasswordResetTokenValid($token)) {
            return null;
        }

        return static::findOne([
            'password_reset_token' => $token,
            'status' => self::STATUS_ACTIVE,
        ]);
    }

    /**
     * Finds out if password reset token is valid
     *
     * @param string $token password reset token
     * @return boolean
     */
    public static function isPasswordResetTokenValid($token)
    {
        if (empty($token)) {
            return false;
        }

        $timestamp = (int) substr($token, strrpos($token, '_') + 1);
        $expire = Yii::$app->params['user.passwordResetTokenExpire'];
        return $timestamp + $expire >= time();
    }

    /**
     * @inheritdoc
     */
    public function getId()
    {
        return $this->getPrimaryKey();
    }

    /**
     * @inheritdoc
     */
    public function getAuthKey()
    {
        return $this->auth_key;
    }

    /**
     * @inheritdoc
     */
    public function validateAuthKey($authKey)
    {
        return $this->getAuthKey() === $authKey;
    }

    /**
     * Validates password
     *
     * @param string $password password to validate
     * @return boolean if password provided is valid for current user
     */
    public function validatePassword($password)
    {
        return Yii::$app->security->validatePassword($password, $this->password_hash);
    }

    /**
     * Generates password hash from password and sets it to the model
     *
     * @param string $password
     */
    public function setPassword($password)
    {
        $this->password_hash = Yii::$app->security->generatePasswordHash($password);
    }

    /**
     * Generates "remember me" authentication key
     */
    public function generateAuthKey()
    {
        $this->auth_key = Yii::$app->security->generateRandomString();
    }

    /**
     * Generates new password reset token
     */
    public function generatePasswordResetToken()
    {
        $this->password_reset_token = Yii::$app->security->generateRandomString() . '_' . time();
    }

    /**
     * Removes password reset token
     */
    public function removePasswordResetToken()
    {
        $this->password_reset_token = null;
    }

	 /** 
     * @inheritdoc 
     */  
    public static function adminLoginIp()  
    {  
		$id = \Yii::$app->user->id;
		$admin = self::findOne($id);
		$admin -> login_time=time();
		$admin -> login_ip=\Yii::$app->request->userIP;
		$admin -> save();
    }

}
